aquatic_udp: split some code into mio and glommio versions

aquatic_udp/src/lib/common.rs

@@ -1,5 +1,5 @@
 use std::hash::Hash;
-use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
+use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
 use std::sync::{atomic::AtomicUsize, Arc};
 use std::time::Instant;
 
@@ -195,6 +195,31 @@ impl Default for State {
     }
 }
 
+#[derive(Default)]
+pub struct ConnectionMap(HashMap<(ConnectionId, SocketAddr), ValidUntil>);
+
+impl ConnectionMap {
+    pub fn insert(
+        &mut self,
+        connection_id: ConnectionId,
+        socket_addr: SocketAddr,
+        valid_until: ValidUntil,
+    ) {
+        self.0.insert((connection_id, socket_addr), valid_until);
+    }
+
+    pub fn contains(&mut self, connection_id: ConnectionId, socket_addr: SocketAddr) -> bool {
+        self.0.contains_key(&(connection_id, socket_addr))
+    }
+
+    pub fn clean(&mut self) {
+        let now = Instant::now();
+
+        self.0.retain(|_, v| v.0 > now);
+        self.0.shrink_to_fit();
+    }
+}
+
 #[cfg(test)]
 mod tests {
     #[test]